<template>
  <div class="login">
    <div class="formBox">
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginRules" class="login-form">
        <h3 class="title">华能岱山1号海上风电项目电子围栏系统</h3>
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
            <template #prefix>
              <svg-icon icon-class="user" class="el-input__icon input-icon" />
            </template>
          </el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" type="password" auto-complete="off" placeholder="密码"
            @keyup.enter="handleLogin">
            <template #prefix>
              <svg-icon icon-class="password" class="el-input__icon input-icon" />
            </template>
          </el-input>
        </el-form-item>
        <el-form-item prop="code" v-if="captchaEnabled">
          <el-input v-model="loginForm.code" auto-complete="off" placeholder="验证码" style="width: 63%"
            @keyup.enter="handleLogin">
            <template #prefix>
              <svg-icon icon-class="validCode" class="el-input__icon input-icon" />
            </template>
          </el-input>
          <div class="login-code">
            <img :src="codeUrl" @click="getCode" class="login-code-img" />
          </div>
        </el-form-item>
        <!-- <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox> -->
        <el-form-item style="width: 100%">
          <el-button :loading="loading" size="medium" type="primary" style="width: 100%"
            @click.prevent="handleLogin">
            <span v-if="!loading">登 录</span>
            <span v-else>登 录 中...</span>
          </el-button>
          <div style="float: right" v-if="register">
            <router-link class="link-type" :to="'/register'">立即注册</router-link>
          </div>
        </el-form-item>
      </el-form>
    </div>

    <!--  底部  -->
    <!-- <div class="el-login-footer">
      <span>Copyright © 2018-2023 ruoyi.vip All Rights Reserved.</span>
    </div> -->
  </div>
</template>

<script setup lang="ts">
import { ref, reactive, watch, onMounted } from 'vue';
import { useRoute, useRouter } from 'vue-router';
import { useStore } from 'vuex';
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from "@/utils/jsencrypt";
import type { FormInstance } from 'element-plus';

interface LoginForm {
  username: string;
  password: string;
  rememberMe: boolean;
  code: string;
  uuid: string;
}

const route = useRoute();
const router = useRouter();
const store = useStore();

const loginFormRef = ref<FormInstance>();
const codeUrl = ref("");
const loading = ref(false);
// 验证码开关
const captchaEnabled = ref(true);
// 注册开关
const register = ref(false);
const redirect = ref<string | undefined>(undefined);

const loginForm = reactive<LoginForm>({
  username: "admin",
  password: "asdqwe}*9{12bnv@.21",
  rememberMe: false,
  code: "",
  uuid: "",
});

const loginRules = {
  username: [
    { required: true, trigger: "blur", message: "请输入您的账号" },
  ],
  password: [
    { required: true, trigger: "blur", message: "请输入您的密码" },
  ],
  code: [{ required: true, trigger: "change", message: "请输入验证码" }],
};

// Watch for route changes
watch(
  () => route.query,
  (query) => {
    redirect.value = query && (query.redirect as string);
  },
  { immediate: true }
);

// Lifecycle hooks
onMounted(() => {
  getCode();
  getCookie();
});

// Methods
function getCode() {
  getCodeImg().then((res) => {
    captchaEnabled.value =
      res.captchaEnabled === undefined ? true : res.captchaEnabled;
    if (captchaEnabled.value) {
      codeUrl.value = "data:image/gif;base64," + res.img;
      loginForm.uuid = res.uuid;
    }
  });
}

function getCookie() {
  const username = Cookies.get("username");
  const password = Cookies.get("password");
  const rememberMe = Cookies.get("rememberMe");
  
  loginForm.username = username === undefined ? loginForm.username : username;
  loginForm.password = password === undefined ? loginForm.password : decrypt(password);
  loginForm.rememberMe = rememberMe === undefined ? false : Boolean(rememberMe);
}

function handleLogin() {
  loginFormRef.value?.validate((valid) => {
    if (valid) {
      loading.value = true;
      if (loginForm.rememberMe) {
        Cookies.set("username", loginForm.username, { expires: 30 });
        Cookies.set("password", encrypt(loginForm.password), {
          expires: 30,
        });
        Cookies.set("rememberMe", String(loginForm.rememberMe), {
          expires: 30,
        });
      } else {
        Cookies.remove("username");
        Cookies.remove("password");
        Cookies.remove("rememberMe");
      }
      
      store.dispatch("Login", loginForm)
        .then(() => {
          router.push({ path: redirect.value || "/" }).catch(() => { });
        })
        .catch(() => {
          loading.value = false;
          if (captchaEnabled.value) {
            getCode();
          }
        });
    }
  });
}
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("@/assets/images/bg.png");
  background-size: cover;
  font-size: 16px;
}

.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #333333;
  font-family: "Helvetica Neue";
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 38px;

    input {
      height: 38px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 38px;
}
</style>
